Metro: Last Light is a post-apocalyptic-themed, first-person shooter video game with stealth and survival horror elements. It was developed by Ukrainian studio 4A Games and published by Deep Silver for Microsoft Windows, PlayStation 3 and Xbox 360 in May 2013. A sequel to the video game Metro 2033, its story follows Artyom, a young soldier living in the Moscow Metro after a devastating nuclear war. Tasked with finding the mysterious Dark Ones, Artyom must venture to different parts of the metro system, and the surface filled with radiated gases, and fight against different factions and mutated monsters. The game improves on various gameplay mechanics of 2033, and introduces elements such as weapon customization.